Fertagyl
Fertagyl is a veterinary hormone medication containing gonadorelin, a synthetic analog of gonadotropin-releasing hormone (GnRH). It is primarily used in cattle and other livestock to manage reproductive functions by stimulating the pituitary gland to release luteinizing hormone (LH) and follicle-stimulating hormone (FSH).
Fertagyl is a veterinary GnRH analog used to manage reproductive health in livestock, particularly cattle.
Key facts at a glance
- RxNorm
- 543159
- Generic
- Fertagyl
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Fertagyl is used in veterinary medicine for reproductive management in cattle, including treatment of ovarian cysts, improvement of fertility rates, and use in estrus synchronization protocols. It may also be used in other livestock species as directed by a veterinarian.
As a GnRH analog, Fertagyl stimulates the pituitary gland to release LH and FSH, which are essential hormones for ovarian function and follicular development in females. This hormonal stimulation helps regulate the estrous cycle and can help resolve certain reproductive disorders.
Fertagyl is a prescription veterinary medication and should only be used under veterinary supervision. Dosage and administration depend on the specific condition being treated and the animal species. Always follow your veterinarian's instructions regarding usage, timing, and any withdrawal periods required for treated animals.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy